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TPS54560 Series

4.5-V to 60-V input, 5-A, step-down DC-DC converter with Eco-mode™

Manufacturer: Texas Instruments

Catalog

4.5-V to 60-V input, 5-A, step-down DC-DC converter with Eco-mode™

Key Features

High efficiency at light loads with pulse skipping Eco-mode™92-mΩ high-side MOSFET146-µA operating quiescent current and2-µA shutdown current100-kHz to 2.5-MHz Fixed switching frequencySynchronizes to external clockLow dropout at light loads with integrated BOOT recharge FETAdjustable UVLO and hysteresis0.8 V 1% Internal voltage reference8-Pin HSOIC with PowerPAD™ package–40°C to 150°C TJoperating rangeCreate a custom design using the TPS54560B with theWEBENCH® Power DesignerHigh efficiency at light loads with pulse skipping Eco-mode™92-mΩ high-side MOSFET146-µA operating quiescent current and2-µA shutdown current100-kHz to 2.5-MHz Fixed switching frequencySynchronizes to external clockLow dropout at light loads with integrated BOOT recharge FETAdjustable UVLO and hysteresis0.8 V 1% Internal voltage reference8-Pin HSOIC with PowerPAD™ package–40°C to 150°C TJoperating rangeCreate a custom design using the TPS54560B with theWEBENCH® Power Designer

Description

AI
The TPS54560B is a 60-V, 5-A step-down regulator with an integrated high side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces no-load-supply current to 146 µA. Shutdown supply current is reduced to 2 µA when the EN (enable) pin is pulled low. Undervoltage lockout is internally set at 4.3 V but can be increased using the EN pin. Output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot. A wide switching frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protects internal and external components during an overload condition. The TPS54560B is available in an 8-pin thermally enhanced HSOIC PowerPAD package. The TPS54560B is a 60-V, 5-A step-down regulator with an integrated high side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces no-load-supply current to 146 µA. Shutdown supply current is reduced to 2 µA when the EN (enable) pin is pulled low. Undervoltage lockout is internally set at 4.3 V but can be increased using the EN pin. Output voltage start-up ramp is internally controlled to provide a controlled start-up and eliminate overshoot. A wide switching frequency range allows either efficiency or external component size to be optimized. Output current is limited cycle-by-cycle. Frequency foldback and thermal shutdown protects internal and external components during an overload condition. The TPS54560B is available in an 8-pin thermally enhanced HSOIC PowerPAD package.